4155216 has 40 divisors (see below), whose sum is σ = 11561760. Its totient is φ = 1278336.

The previous prime is 4155197. The next prime is 4155247. The reversal of 4155216 is 6125514.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706 + ... + 3953.

It is an arithmetic number, because the mean of its divisors is an integer number (289044).

Almost surely, 2^4155216 is an apocalyptic number.

It is an amenable number.

4155216 is an abundant number, since it is smaller than the sum of its proper divisors (7406544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4155216 is a wasteful number, since it uses less digits than its factorization.

4155216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683 (or 6677 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 4155216 is about 2038.4346935823. The cubic root of 4155216 is about 160.7673555672.

It can be divided in two parts, 4155 and 216, that added together give a triangular number (4371 = T₉₃).

The spelling of 4155216 in words is "four million, one hundred fifty-five thousand, two hundred sixteen".